Enumeration used for indicating the direction of a RFC function parameter.
typedef enum _RFC_DIRECTION { RFC_IN = 0x0001, /* input parameter, corresponding to ABAP IMPORTING parameter */ RFC_OUT= 0x0002, /* output parameter, corresponding to ABAP EXPORTING parameter */ RFC_INOUT = RFC_IN | RFC_OUT /* input and output parameters, this is corresponding to ABAP CHANGING or TABLES parameter */ }RFC_DIRECTION;